QA1 Pro-Rear Twintube Coil-Over Rear Single Adjustable Shock Kit - 1551-1850 lb - Progressive 175-350 lb/in Spring Rate LY23071 ROUSH suspension parts are developed

ROUSH suspension parts are developed over many hours on the race track

1989-1990 Chevrolet C1500

1955-1959 GMC 300

TC2 seats are constructed from

1987-1992 Pontiac Firebird

QA1 Pro-Rear Twintube Coil-Over Rear Single Adjustable Shock Kit - 1551-1850 lb - Progressive 175-350 lb/in Spring Rate LY23071 ROUSH suspension parts are developedUpgrade your rear end with QA1's Pro Rear System. Available in double adjustable, single adjustable and ride sensitive valving non adjustable options,each adjustment has been carefully defined to provide the ideal horse curve to maximize performance. With evenly spaced valving changes throughout the adjustment range, there are no jumps when adjusting between any two clicks. These Pro Rear Systems are commonly used in drag racing, street performance